Dephasing in a quantum dot due to coupling with a quantum point contact

被引：124

作者：

Levinson, Y

机构：

[1] Weizmann Institute of Science

来源：

EUROPHYSICS LETTERS | 1997年 / 39卷 / 03期

关键词：

D O I：

10.1209/epl/i1997-00351-x

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider the dephasing of an one-electron state in a quantum dot due to charge fluctuations in a biased quantum point contact coupled to the dot capacitively. The contribution to the dephasing rate due to the bias depends on temperature and bias in the same way as shot-noise in the point contact at zero frequency, but do not follow the \t\(2)(1(4)- \t\(2)) suppression.

引用

页码：299 / 304

页数：6

共 14 条

[1] ALEINER IL, 1997, CONDMAT9702001
[2] Measurement of phase and magnitude of the reflection coefficient of a quantum dot
Buks, E
Schuster, R
Heiblum, M
Mahalu, D
Umansky, V
Shtrikman, H
[J]. PHYSICAL REVIEW LETTERS, 1996, 77 (22) : 4664 - 4667
[3] BUKS E, 1997, B AM PHYS SOC, V42, pR13
[4] SCATTERING-THEORY OF CURRENT AND INTENSITY NOISE CORRELATIONS IN CONDUCTORS AND WAVE GUIDES
BUTTIKER, M
[J]. PHYSICAL REVIEW B, 1992, 46 (19): : 12485 - 12507
[5] MEASUREMENTS OF COULOMB BLOCKADE WITH A NONINVASIVE VOLTAGE PROBE
FIELD, M
SMITH, CG
PEPPER, M
RITCHIE, DA
FROST, JEF
JONES, GAC
HASKO, DG
[J]. PHYSICAL REVIEW LETTERS, 1993, 70 (09) : 1311 - 1314
[6] Transmission through a quantum dot in an Aharonov-Bohm ring
Hackenbroich, G
Weidenmuller, HA
[J]. PHYSICAL REVIEW LETTERS, 1996, 76 (01) : 110 - 113
[7] LESOVIK GB, 1989, JETP LETT+, V49, P592
[8] OREG Y, 1996, CONDMAT9607145
[9] Phase measurement in a quantum dot via a double-slit interference experiment
Schuster, R
Buks, E
Heiblum, M
Mahalu, D
Umansky, V
Shtrikman, H
[J]. NATURE, 1997, 385 (6615) : 417 - 420
[10] PHASE UNCERTAINTY AND LOSS OF INTERFERENCE - A GENERAL PICTURE
STERN, A
AHARONOV, Y
IMRY, Y
[J]. PHYSICAL REVIEW A, 1990, 41 (07): : 3436 - 3448

← 1 2 →